target not found

[Srinath_03]

hi iam having nucleoh755 board, in that when i try to flash target is not connecting and when not connecting to cube programmer also, it showing perform discovery using debug authentication. how to do it. please find the image for the error shown. and MCU power supply all are ok.

regards,

srinath

[Imen.D]

Hello @Srinath_03 ,

Please follow these articles which may help you:

• How to solve connection errors when connecting and programming the STM32 target board
• Unable to connect to STM32H7 devices - STMicroelectronics Community

[Srinath_03 · Accepted solution]

hi @Imen.DImen.D thanks for the response, my problem has solved, i dont know how, when connecting to cube programmer i have changed to power down mode and target has connected, and i have erased the chip, after that it is fine. working normally.

regards,

srinath

[Imen.D]

Hi @Srinath_03 ,

Good to hear you made it work and thanks for sharing your progress on this.

[Srinath_03]

hi @Imen.D  thanks,

but i want to know what makes the mcu to go in that mode, i dont know fault problem, and why target not found issue came. mcu power supply are ok only, other than that what can cause the mcu to go that mode.

regards, 

srinath